{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["RNA", "protein", "cell line", "DNA", "cell type"], "input": "Since HIV-1 long terminal repeat contains two functional nuclear factor kB ( NF-kB ) regulatory elements , we studied the ability of PMA to induce NF-kB binding activity by different assays."}
{"RNA": [], "protein": ["NF-kB"], "cell line": [], "DNA": ["HIV-1 long terminal repeat", "nuclear factor kB ( NF-kB ) regulatory elements"], "cell type": []}